目录课程设计任务书........................................................31电气主接线设计.....................................................61.1主接线设计要求...................................................61.2主接线基本接线方式...............................................71.3主接线的接线方案确定............................................122主变压器选择......................................................162.1主变压器的选择原则..............................................162.2主变压器台数的选择..............................................162.3主变压器容量的选择..............................................173短路电流计算......................................................203.1概述............................................................203.2短路电流计算目的................................................203.3短路电流计算基本假设............................................203.4各元件电抗标么值计算............................................213.4.1各电气元件标幺值的计算.........................................213.4.2线路标幺电抗总图及化简图.......................................213.5系统最大运行方式下短路电流计算..................................233.5.1最大最小运行方式的含义..........................................233.5.2220KV侧短路计算...............................................233.5.3110KV侧短路计算...............................................253.5.410KV侧短路计算.................................................274主要电气设备选择..................................................304.1概述............................................................304.1.1按正常工作条件选电气设备......................................304.1.2按短路状态进行校验.............................................314.2高压断路器的选择................................................324.2.1220KV侧断路器的选择...........................................334.2.1110KV侧断路器的选择...........................................344.2.210KV侧断路器的选择............................................354.3隔离开关的选择...................................................364.3.1220KV侧隔离开关的选择.........................................374.3.1110KV侧隔离开关的选择.........................................384.3.